101255513 has 2 divisors, whose sum is σ = 101255514. Its totient is φ = 101255512.

The previous prime is 101255477. The next prime is 101255521. The reversal of 101255513 is 315552101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98168464 + 3087049 = 9908^2 + 1757^2 .

It is a cyclic number.

It is not a de Polignac number, because 101255513 - 2¹⁴ = 101239129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (101255543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50627756 + 50627757.

It is an arithmetic number, because the mean of its divisors is an integer number (50627757).

Almost surely, 2^101255513 is an apocalyptic number.

It is an amenable number.

101255513 is a deficient number, since it is larger than the sum of its proper divisors (1).

101255513 is an equidigital number, since it uses as much as digits as its factorization.

101255513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 101255513 is about 10062.5798381926. The cubic root of 101255513 is about 466.0933350841.

The spelling of 101255513 in words is "one hundred one million, two hundred fifty-five thousand, five hundred thirteen".